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Expired European patentEurope

Contact-pins arrangement for the electrical contacting of a test device with circular contact surfaces of a test sample

EP 0283545 B1 · Applicant: International Business Machines Corporation

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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Filed March 27, 1987 and granted October 16, 1991. A European patent lasts at most 20 years from filing, so its term ended March 27, 2007.
  • A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by September 27, 2012.
  • We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledMarch 27, 1987
PublishedSeptember 28, 1988
GrantedOctober 16, 1991
Term endedMarch 27, 2007
Application numberEP 87104577
Classification (CPC)G01R1/07357

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedMarch 27, 1987PublishedSep 28, 1988Patent grantedOct 16, 1991Term endedMarch 27, 2007

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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